package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.PathVariable;

import java.time.LocalDateTime;
import java.util.List;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        String md5Password = DigestUtils.md5DigestAsHex(password.getBytes());
        log.info("md5Password:{}",md5Password);
        if (!md5Password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public void addEmp(EmployeeDTO employeeDTO) {
        //写数据库之前准备数据,准备完之后写数据库
        //员工表需要插入11个数据，前端穿6个数据，我们需要准备5个
        Integer status = 1;
        LocalDateTime createtime = LocalDateTime.now();
        LocalDateTime updatetime = LocalDateTime.now();
        //创建人和更新人的id(当前登录用户的ID)，从token中获取
        //todo 稍后处理
        Long createuser = 1L;
        Long updateuser = 1L;
        //把前端数据和准备的数据封装成实体类对象。
        Employee employee = Employee.builder()
                .name(employeeDTO.getName())
                .username(employeeDTO.getUsername())
                .idNumber(employeeDTO.getIdNumber())
                .phone(employeeDTO.getPhone())
                .sex(employeeDTO.getSex())
                .status(status)

                //.createTime(createtime)
                //.updateTime(updatetime)
                //.createUser(createuser)
                //.updateUser(updateuser)
                .build();
        //默认密码是123456
        String md5Password = DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes());
        employee.setPassword(md5Password);
        //调用emp mapper
        employeeMapper.insertEmp(employee);
        log.info("emp:{}", employee);

    }

    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {

        //分页查询
        PageHelper.startPage(employeePageQueryDTO.getPage(),
                employeePageQueryDTO.getPageSize());

        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

        long total = page.getTotal();

        List<Employee> records = page.getResult();

        return new PageResult(total, records);
    }

    @Override
    public void startOrStop(Integer status, Long id) {
        Employee employee = Employee.builder()
                .status(status)
                .id(id)
                .build();

        employeeMapper.update(employee);
    }

    @Override
    public Employee getById(Long id) {
        Employee employee = employeeMapper.getById(id);
        employee.setPassword("****");
        return employee;
    }

    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();

        BeanUtils.copyProperties(employeeDTO, employee);

        //employee.setUpdateTime(LocalDateTime.now());
        //employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.update(employee);
    }

}
